42170661 ÷ 317 
We're looking to find how many times 317 goes into 42170661.

Step 1:
If we divide 4 by 317, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 317

Moving on to step 2:
317 can be fit into 42 0 times, resulting in a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 317

On to step 3:
421 divided by 317 is 1 with a remainder of 104.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 317 away from 421, we end up with 104.
Fetch the next digit (7) from the dividend, attach it to 104 and continue: 1047 / 317

Moving on to step 4:
If we divide 1047 by 317, we get 3 and a remainder of 96.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 951 from 1047 to get 96.
Grab the next digit (0) from the dividend, add it to 96, then carry on: 960 / 317

On to step 5:
317 can be fit into 960 3 times, resulting in a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 133.0
Deduct 951 from 960 and we're left with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 317

On to step 6:
The number 317 fits into 96 0 times, leaving a remainder of 96.
Use 0 as the next digit of our solution. 
Result so far: 1330.0
If we subtract 0 from 96, we get 96.
Bring next digit (6) of the dividend behind the 96 and repeat the process: 966 / 317

Moving on to step 7:
317 goes into 966 3 times with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 13303.0
Subtract 951 from 966 to get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 317

Going ahead to step 8:
If we divide 151 by 317, we get 0 and a remainder of 151.
Use 0 as the next digit of our solution. 
Result so far: 133030.0
If we subtract 0 from 151, we get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Going ahead to step 9:
1510 divided by 317 is 4 with a remainder of 242.
Use 4 as the next digit of our solution. 
Result so far: 133030.4
Deduct 1268 from 1510 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Advancing to step 10:
2420 divided by 317 is 7 with a remainder of 201.
The number 7 becomes the next digit in our result. 
Result so far: 133030.47
If we subtract 2219 from 2420, we get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Advancing to step 11:
317 goes into 2010 6 times with a remainder of 108.
The number 6 becomes the next digit in our result. 
Result so far: 133030.476
If we take 1902 away from 2010, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 12:
If we divide 1080 by 317, we get 3 and a remainder of 129.
Use 3 as the next digit of our solution. 
Result so far: 133030.4763
Deduct 951 from 1080 and we're left with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Step 13:
317 goes into 1290 4 times with a remainder of 22.
The next digit of our result is 4. 
Result so far: 133030.47634
If we subtract 1268 from 1290, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 14:
317 can be fit into 220 0 times, resulting in a remainder of 220.
Put 0 as the next digit of the answer. 
Result so far: 133030.47634
Subtracting 0 from 220 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 15:
The number 317 fits into 2200 6 times, leaving a remainder of 298.
The next digit of our result is 6. 
Result so far: 133030.4763406
If we subtract 1902 from 2200, we get 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Step 16:
When dividing 2980 by 317, we get 9 with a remainder of 127.
Write down 9 as next digit of the result. 
Result so far: 133030.47634069
Subtract 2853 from 2980 to get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Our division results in 133030.47634069 with a remaining 1.27e-07.